Q: Is 2,121,505 a Prime Number?
A: No, 2,121,505 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 2121505 can be evenly divided by 1 5 101 505 4,201 21,005 424,301 and 2,121,505, with no remainder.
Since 2,121,505 cannot be divided by just 1 and 2,121,505, it is not a prime number.